Tunable Multiwavelength Fiber Laser Source for Continuous True-Time-Delay Beamforming

被引：8
|
作者：
Sun, Yongmao [1 ]
Zhang, Ruifeng [1 ]
Li, Qiang [1 ]
Wang, Zhaoying [2 ]
机构：
[1] Tianjin Univ, Sch Elect Informat Engn, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Minist Educ, Sch Precis Instrument & Optoelect Engn, Key Lab Optoelect Informat & Tech Sci, Tianjin 300072, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2016年 / 28卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Semiconductor optical amplifier; Fabry-Perot filter; one-dimensional translation stage; chirped fiber grating; phased array antenna; true-time-delay beamforming; MICROWAVE; PHASE;
D O I：
10.1109/LPT.2016.2538280
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a novel approach of a true-time-delay (TTD) laser source for continuous phased-array beamforming employing a semiconductor optical amplifier (SOA) and a tunable Fabry-Perot filter (FPF). The wavelength tuning is achieved by tuning the cavity length of the filter, to which an SOA that generates the C-band optical signal is applied. A five-channel TTD system based on a linear chirped fiber grating (LCFG) has been constructed and experimented using the proposed laser source. The signal-to-noise ratio of the obtained multiwavelength signal can be more than 35 dB. Thanks to the high position resolution of the translation stage, the time delay responses can be continuously controlled by changing the cavity length of the FPF.
引用
收藏
页码：1261 / 1263
页数：3
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